PEG

6-Maleimidocaproic acid PFP ester contains a maleimide and PFP ester end group. Maleimides react with thiol groups within the pH range of 6.5 to 7.5 and form stable thioester bonds. PFP is an activated ester which can react with amine groups to form stable amide bonds. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Bis-PEG5-PFP ester is a PEG linker containing two PFP ester moieties. PFP esters are activated esters which react with primary amines to form stable amide bonds. The hydrophilic PEG linker increases the water solubility of compounds in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Bis-PEG7-PFP ester is a PEG linker containing two PFP ester moieties. PFP esters are activated esters which react with primary amines to form stable amide bonds. The hydrophilic PEG linker increases the water solubility of compounds in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Amino-PEG4-t-butyl ester is a PEG reagent containing an amino (NH2) and a t-butyl protected carboxyl group. The hydrophilic PEG spacer increases solubility in aqueous media. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The t-butyl protected carboxyl (Boc) can be deprotected under acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Amino-PEG6-t-butyl ester is a PEG reagent containing an amino NH2 group with a t-butyl protected carboxyl group (Boc). The hydrophilic PEG spacer increases solubility in aqueous media. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The t-butyl protected carboxyl group can be deprotected under acidic conditions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Ald-Ph-PEG4-acid is a small molecule PEG reagent. The benzaldehyde group is reactive with hydrazide and aminooxy moiety. The terminal carboxylic acid can couple with primary amines in the presence of activators such as EDC or HATU to form a stable amide bond. The hydrophilic PEG linker increases the solubility of compounds in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Amino-PEG4-acid is a very popular PEG linker. The amino group (NH2) is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The terminal carboxylic acid can react with primary amine groups of activated NHS ester to form a stable amide bond, long PEG spacer increases reagent's solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Amino-PEG6-acid is a PEG reagent composing one amine (NH2) and one terminal carboxylic acid group (CO2). The hydrophilic PEG spacer increases solubility in aqueous media. The amino group is reactive with activated NHS esters to form a stable amide bond. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Bis-PEG5-NHS ester is a PEG linker containing two NHS ester groups. The hydrophilic PEG spacer increases solubility in aqueous media. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.